Question about Canon Extender EF 2x II Lens Converter
My 100-400mm lens will not auto focus when using with the Canon Extender EF2x. I was told you could cover one of the connections with a small piece of tape. Does anyone know which connection this is?
It's the same 3 as with the 1.4x, but be warned it is likely to be a very unsatisfactory solution in all but the very brightest daylight, and the lens will continually hunt for autofocus - you risk burning out your focussing motor.
If you really want to experiment, hold the converter so the writing on it is the correct way up. Looking at the row of gold pins, rotate the lens so they are at the top, or the 12 o'clock position. It is the 3 leftmost pins you want to cover. Use a piece of sellotape (scotch tape) to cover the three pins, you'll have to cut a thin strip to do it. Be careful as the tape could slip as you attach the converter to the lens adding more risk to the experiment if it gets stuck somewhere it shouldn't!
I tried this with my 2x (version 1) and a 70-200f4/L, it tries to focus but fails with the much reduced light. Might try it outside on a sunny day, but also scared of damaging my lens!
Posted on Feb 03, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 24, 2012 | Canon Digital Rebel EOS 450D EOS Rebel XSi...
Jun 13, 2011 | Canon EOS 40D Digital Camera
Apr 04, 2010 | Canon EOS Rebel XSi Digital Camera
Oct 14, 2009 | Canon EOS 400D / Rebel XTi Digital Camera...
Sep 09, 2009 | Canon Digital Rebel / EOS-300D Digital...
Apr 15, 2008 | Cameras
Dec 16, 2007 | Canon EOS 400D / Rebel XTi Digital Camera...
254 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: